Clinical Significance
ABO Group and Rh Type (REFL) - Type and Rh are needed to assess the risk of transfusion reactions and hemolytic disease of the newborn.
Includes
This is a client specific reflex test. Reflex criteria has been pre-defined by the ordering physician. Additional testing will be performed at an additional charge.
Methodology
Immune Agglutination
Preferred Specimen(s)
5 mL whole blood collected in an ACD-A or ACD-B (yellow-top) tube
Alternative Specimen(s)
Red-top tube (no gel) • EDTA (pink-top) tube • Cord blood • EDTA (lavender-top) tube
Note: If submitted with a CBC, HbA1c or any other test requiring an EDTA (lavender-top) tube, please submit a separate tube for this test.
Minimum Volume
1 mL
Transport Container
ACD-A or ACD-B (yellow-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: Unacceptable
Reject Criteria
Hemolysis • Serum Separator Tube (SST®)